Open-ILS/web/opac/skin/default/js/sidebar_extras.js

   1
   2 /* captures extraneous info from each record */
   3
   4 var subjectCache = {};
   5 var authorCache = {};
   6 var seriesCache = {};
   7
   8 function resultBuildCaches(records) {
   9         for( var r in records ) {
  10                 var rec = records[r];
  11                 for( var s in rec.subject() )
  12                         subjectCache[s] == null ? subjectCache[s] = 1 : subjectCache[s]++;
  13                 authorCache[rec.author()] = 1;
  14                 for( var s in rec.series() ) seriesCache[rec.series()[s]] = 1;
  15         }
  16 }
  17
  18 function resultSortSubjects(a, b) { return -(a.count - b.count); } /* sort in reverse */
  19 function resultDrawSubjects() {
  20
  21         var subjs = [];
  22         for( var s in subjectCache )
  23                 subjs.push( { sub : s, count : subjectCache[s] } );
  24         subjs.sort(resultSortSubjects);
  25
  26         var ss = [];
  27         for( var s in subjs ) ss.push(subjs[s].sub);
  28
  29         resultDrawSidebarTrees(
  30                 STYPE_SUBJECT,
  31                 "subjectSidebarTree", ss,
  32                 $("subject_tree_sidebar"),
  33                 $("subject_sidebar_tree_div") );
  34 }
  35
  36 function resultDrawAuthors() {
  37         var auths = new Array();
  38         for( var s in authorCache ) auths.push(s);
  39
  40         resultDrawSidebarTrees(
  41                 STYPE_AUTHOR,
  42                 "authorSidebarTree", auths.sort(),
  43                 $("author_tree_sidebar"),
  44                 $("author_sidebar_tree_div") );
  45 }
  46
  47 function resultDrawSeries() {
  48         var sers = new Array();
  49         for( var s in seriesCache ) sers.push(s);
  50         resultDrawSidebarTrees(
  51                 STYPE_SERIES,
  52                 "seriesSidebarTree", sers.sort(),
  53                 $("series_tree_sidebar"),
  54                 $("series_sidebar_tree_div") );
  55 }
  56
  57 var IESux = true;
  58
  59 function resultDrawSidebarTrees( stype, treeName, items, wrapperNode, destNode ) {
  60         eval("tree = " + treeName);
  61
  62         var xrefCache = [];
  63         var found = false;
  64         var x = 0;
  65         for( var i in items ) {
  66
  67                 if(isNull(items[i])) continue;
  68
  69                 /* again, IE is a turd */
  70                 if(IE) { if(x++ > 5) break; }
  71                 else { if(x++ > 7) break; }
  72
  73                 found = true;
  74
  75                 var item = normalize(truncate(items[i], 65));
  76                 var args = {};
  77                 var href = resultQuickLink( items[i], stype );
  78                 tree.addNode( stype + "_" + items[i], treeName + 'Root', item, href );
  79
  80 //              if( !IE ) resultFireXRefReq(treeName, stype, items[i]);
  81
  82                 var a = {};
  83                 a.type = stype;
  84                 a.term = item;
  85                 xrefCache.push(a);
  86         }
  87
  88         if(found) {
  89                 unHideMe(wrapperNode);
  90 //              if(IE) resultFireXRefSingle(treeName, xrefCache, stype);
  91                 resultFireXRefBatch(treeName, xrefCache, stype);
  92         }
  93 }
  94
  95 /* XXX */
  96 function resultFireXRefBatch(treeName, xrefCache, stype) {
  97         var query = [];
  98         for( var i = 0; i != xrefCache.length; i++ ) {
  99                 var topic = xrefCache[i];
 100                 query.push( [ topic.type, topic.term ] );
 101         }
 102         var req = new Request(FETCH_CROSSREF_BATCH, query);
 103         var tree;
 104         eval('tree=' + treeName);
 105         req.request._tree = tree;
 106         req.request._stype = stype;
 107         req.callback(resultRenderXRefTree);
 108         req.send();
 109 }
 110
 111 var xrefCacheIndex = {};
 112 xrefCacheIndex['subject'] = 0;
 113 xrefCacheIndex['author'] = 0;
 114 xrefCacheIndex['series'] = 0;
 115
 116 function resultHandleXRefResponse(r) {
 117         resultFireXRefSingle( r._treename, r._cache, r._stype );
 118         resultAppendCrossRef(r);
 119 }
 120
 121
 122 function resultFireXRefSingle( treeName, xrefCache, stype ) {
 123         var i = xrefCacheIndex[stype]++;
 124         if(xrefCache[i] == null) return;
 125         var item = xrefCache[i].term;
 126         var tree;
 127         eval('tree=' + treeName);
 128         var req = new Request(FETCH_CROSSREF, stype, item);
 129         req.request._tree = tree;
 130         req.request._item = item;
 131         req.request._stype = stype;
 132         req.request._cache = xrefCache;
 133         req.request._treename = treeName;
 134         req.callback(resultHandleXRefResponse);
 135         req.send();
 136 }
 137
 138 function resultFireXRefReq( treeName, stype, item ) {
 139         var tree;
 140         eval('tree=' + treeName);
 141         var req = new Request(FETCH_CROSSREF, stype, item);
 142         req.request._tree = tree;
 143         req.request._item = item;
 144         req.request._stype = stype;
 145         req.callback(resultAppendCrossRef);
 146         req.send();
 147 }
 148
 149
 150 function resultQuickLink( term, type ) {
 151         var args = {};
 152         args.page = MRESULT;
 153         args[PARAM_OFFSET] = 0;
 154         args[PARAM_TERM] = term;
 155         args[PARAM_STYPE] = type;
 156         return buildOPACLink(args);
 157 }
 158
 159 /* XXX */
 160 function resultRenderXRefTree(r) {
 161         var tree = r._tree;
 162         var res = r.getResultObject();
 163         var stype = r._stype;
 164
 165         for( var c in res ) {
 166                 var cls = res[c];
 167                 for( var t in cls ) {
 168                         var term = res[c][t];
 169                         var froms = term['from'];
 170                         var alsos = term['also'];
 171                         var total = 0;
 172
 173                         for( var i = 0; (total++ < 5 && i < froms.length); i++ ) {
 174                                 var string = normalize(truncate(froms[i], 45));
 175                                 if($(stype + '_' + froms[i])) continue;
 176                                 tree.addNode(stype + '_' + froms[i],
 177                                         stype + '_' + t, string, resultQuickLink(froms[i],stype));
 178                         }
 179                         for( var i = 0; (total++ < 10 && i < alsos.length); i++ ) {
 180                                 var string = normalize(truncate(alsos[i], 45));
 181                                 if($(stype + '_' + alsos[i])) continue;
 182                                 tree.addNode(stype + '_' + alsos[i],
 183                                         stype + '_' + t, string, resultQuickLink(alsos[i],stype));
 184                         }
 185                 }
 186         }
 187 }
 188
 189
 190 /* Addes the see-from/see-also entries for this subject item */
 191 function resultAppendCrossRef(r) {
 192         var tree                = r._tree
 193         var item                = r._item
 194         var stype       = r._stype;
 195         var result      = r.getResultObject();
 196         if(!result) return;
 197         var froms       = result['from'];
 198         var alsos       = result['also'];
 199
 200         var total = 0;
 201
 202         for( var i = 0; (total++ < 5 && i < froms.length); i++ )
 203                 resultAddXRefItem( tree, item, stype, froms, i );
 204
 205         for( var i = 0; (total++ < 10 && i < alsos.length); i++ )
 206                 resultAddXRefItem( tree, item, stype, alsos, i );
 207 }
 208
 209 /**
 210  * Adds a single entry into the see-from/also sidebar tree
 211  */
 212 var collectedStrings = [];
 213 function resultAddXRefItem(tree, rootItem, stype, arr, idx) {
 214
 215         var string = normalize(truncate(arr[idx], 45));
 216
 217         if( string == rootItem ) return;
 218
 219         if( grep( collectedStrings,
 220                 function(a) { return (a == string); }) ) return;
 221
 222         if($(stype + '_' + arr[idx])) return;
 223
 224         tree.addNode(stype + '_' + arr[idx],
 225                 stype + '_' + rootItem, string, resultQuickLink(arr[idx],stype));
 226
 227         collectedStrings.push(string);
 228 }
 229
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